Subsoil-plow.



PATENTED MAY 29, 1906.

J. G. OGDEN.

SUBSOIL PLOW.

APPLICATION FILED JAN. 25, 1906.

UNITED STATES PATENT OFFICE.

JOHN c. OGDEN, or TONOPAH, NEVADA.

SUBSOIL-PLOWQ Specification of Letters Patent.

Patented May 29, 1906.

Application filed January 25, 1906. Serial No, 297,765.

To GLZZ whom, it may concern:

Be it known that 1, JOHN C. OGDEN, a citizen of the United States, residing at Tonopah, in the county of Nye and State of Nevada, have invented new and useful Improvements in Subsoil-Plows, of which the followmg is a specification. My invention relates to an apparatus which is especially designed for breaking up the hard-pan beneath the surface soil and other soils requiring deep cultivation.

It consists in the combination of mechanism and in details of construction, which will be more fully explained by reference to the accompanying drawings, in which- Figure 1 is a side elevation showing my invention. Fig. 2 is a section of the colter, showing its shape and a plan of the plow-shoe. Fig. 3 is an end elevation of same.

It is the object of ,my invention to provide an apparatus for the breaking up of soil beneath the surface, to be subsequently fol lowed by ordinary plows, said apparatus being readily adjustable to cut to any desired depth.

As shown in the drawings, A is a plowbeam having handles 2 and wheels 3, adapted to travel upon the surface of the ground. These wheels are journaled in segments 4, one end of each segment being pivoted to the beam, as shown at 5, and the other end having a number of holes 6, radially disposed with relation to the pivot-point 5, so that a bolt 7 may be introduced into eithen of the holes and into a hole in the beam, and by this arrangement the segment may be turned about its pivot-point, so as to raise or depress the plow-beam with relation to the bearingwheels. This provides for any desired adjustment of the beam and the plow carried thereby.

8 is a colter. This colter passes through the beam at a considerable angle, the lower end extending toward the front, as shown.

9 represents plates secured to the beam and slotted for the passage of the colter. The colter may thus be moved with relation to the beam so that the plow or shoe carried thereby can be adjusted to any desired depth of cut, this adjustment operating in unison with the beam adjustment or independently thereof.

10 is a key fitting the channeled irons 9, and when driven in they bind sufficiently against the colter to firmly lock the latter at its point of adjustment.

his a brace-bar bolted to the beam and extending rearwardly at an angle from the beam and having its rear end slotted and in line with the colter, which also passes through this brace, the brace assisting to steady and hold the colter in position.

The foot of the colter has its sides expanded or beveled outwardly, as shown at 12, this forming a dovetailed foot, which is adapted to enter a similarly-shaped slot in the shoe 13. This shoe is here shown in the form of a flat plate convergent from the rear to a point at the front, made sufliciently thick in the middle to have the dovetailed slot made longitudinally in it, this slot being adapted, as before stated, to fit the'beveled foot of the colter, upon which it is driven, and the shoe will be held in place by the pressure against the front as it is operated.

The edges of the shoe are sufficiently sharp, and when the colter and beam are set to cause the shoe to cut to the proper depth the hauling of the apparatus over the ground will cause the shoe to move in a plane substantially parallel with the surface of the ground, thus lifting and breaking the hard subsoil or clay to any required depth. This apparatus will then be followed by plows of the ordinary description, cutting to such depth as may be desired, and the ground is thus broken up, so that arid or virgin soil may be reclaimed, and where rains are scanty and water is scarce the depth to which the soil is loosened by this apparatus enables it to retain such moisture as is deposited upon it for a very considerable time.

The clevis 14 at the front of the plow serves for the attachment of the team or any device by which the plow may be hauled.

Having thus described my invention, what I claim, and desire to secure by Letters Pat, ent, is

1. An improved plow having in combination a beam having handles and hauling attachments, bearing-wheels at front and rear, and means for raising or depressing the plowbeams upon said wheels, a colter-bar extending diagonally through the plow-beam with its lower end in advance, a horizontally-disposed, wedge-shaped shoe removably secured to the lower end of the colter, lates fixed to the top and bottom of the ff w-beam and slotted to allow the colter to slide in the slots, a wedge-shaped key passing vertically through the plates and beam and extending longitudinally along the shank of the colter and adapted to bind the shank between itself and the end walls of the slots in the plates, to lock the oolter to the beam, a curved brace-bar fitting the front of the beam extending downwardly and slotted to fit the lower part of the colter.

2. In a plow of the character described, a beam with handles and hauling attachments, wheels upon which the front and rear end of the beam are adjustably. supported, an inclined colter extending diagonally through the beam, means for adjusting, locking and bracing it with relation to the beam, said colter having the lower end in the form of a dovetailed tenon, a horizontally-disposed wedge-shaped shoe having a correspondinglydovetailed slot made in its upper surface adapted to fit and interlock with the tenon of the colter.

3. An agricultural implement comprising a wheels at the front and rear, curved se ments pivoted at one end to the beam and aving the other end adjustable about the pivot, said segments carrying the wheel-journals, a

colter extending diagonally through the beam,

an inclined brace through which it is slidable, means for adjusting and locking the colter in the beam, a dovetailed tenon at the lower end, and a horizontally-disposed shoe convergent from the rear to the front, having its surface transversely arched, and a dovetailed slot therein to interlock with the tenon of the colter.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit- R. F. GILBERT, 2 1

AL. HARDISTER. 5 J i 

